test(NODE-6863): unskip flaky csot legacy timeout spec test

Author: durran

test/integration/client-side-operations-timeout/client_side_operations_timeout.spec.test.ts

@@ -19,8 +19,6 @@ const skippedTests = {
     'TODO(DRIVERS-2965): see modified test in unified-csot-node-specs',
   'timeoutMS applies to full resume attempt in a next call': 'TODO(DRIVERS-3006)',
   'timeoutMS is refreshed for getMore if maxAwaitTimeMS is set': 'TODO(DRIVERS-3018)',
-  'operation succeeds after one socket timeout - aggregate on collection':
-    'TODO(NODE-6863): fix flaky test',
   'socketTimeoutMS is ignored if timeoutMS is set - dropIndex on collection':
     'TODO(NODE-6862): fix flaky test',
   'operation fails after two consecutive socket timeouts - aggregate on collection':

test/tools/runner/flaky.ts

@@ -31,5 +31,6 @@ export const flakyTests = [
   'Transactions Convenient API Spec Unified Tests transaction-options withTransaction inherits transaction options from defaultTransactionOptions',
   'CSOT spec tests timeoutMS behaves correctly for GridFS download operations timeoutMS applied to entire download, not individual parts',
   'Retryable Writes (unified) retryable writes handshake failures collection.updateOne succeeds after retryable handshake network error',
-  'Retryable Reads (unified) retryable reads handshake failures collection.aggregate succeeds after retryable handshake network error'
+  'Retryable Reads (unified) retryable reads handshake failures collection.aggregate succeeds after retryable handshake network error',
+  'CSOT spec tests legacy timeouts behave correctly for retryable operations operation succeeds after one socket timeout - aggregate on collection'
 ];